If he is a known person or a neighbor of yours, inform his family members and make arrangements to take him safely to his house

Try to obtain the service of a Police officer ( by dialing 15)

You should always act to prevent any possible harm that may be caused by him. If his behavior is liable to cause damage especially to the property and if your reaction can cause any harm you should refrain from doing so. If you feel that this insane person is going to act in a manner that will cause you an injury or your death, you can act for your private defense against him although he is an insane person

If a suspicious character is loitering closer to your house as near an important public place.

Thereafter arrangement should be made to produce him before a doctor as early as possibleThen if the doctor confirms the person is dead, inform this to the nearest police station and act according to the instructions given by police